MAUDE Adverse Event Report: ENCORE MEDICAL L.P. STAR; SLIDING CORE, UHMPWE,7MM

Catalog Number	400-141F
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	07/07/2023
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Poly swap, unknown reason.Due to the original poly lot number remaining unknown, simulated use testing cannot be conducted utilizing similar parts to simulate the event.Additionally, the poly component was implanted for approximately 10 years, so simulated use testing would not be able to accurately recreate the physiological changes that occurred during implantation.There were 46 similar complaints identified for st ar poly swaps with no reported damage beyond normal wear.Previous complaints were investigated and documented by stryker prior to february 2023 and do not aid in investigation for this complaint.Similar complaints identified after february 2023 had a root cause of unknown and do not aid in the investigation for this complaint.Ohr review was not conducted due to the complaint part not being returned and the lot number remaining unknown.It is unknown if the doctor followed the surgical technique with the limited information available.The poly was not returned, so visual and dimensional inspection did not occur.Simulated use testing did not occur as the poly was implanted for an approximately 10 years and the part and lot numbers remaining unknown.Based on the limited information, and the poly not being returned, the root cause shall remain as unknown.The following information remains unknown: - date implanted - patient weight, bone quality, and noncompliance - inventory type - lot number - inventory statsus the overall risk is high with a risk index of 3.Severity level of 4 (significant) is appropriate as there could be permanent functional impairment of body function and the failure may occur with or without warning.It is to be noted that no adverse events were reported resulting from the swapped poly.It was determined that 631 tibial polymer components (pn:400-14x) were sold during july 2022 and july 2023.With 47 reported events, the occurrence rate is 7.45%.Thus, an occurrence level of 5 (frequenuhigh) is appropriate.Per rf-str-0001 revision 2 risk benefit analysis for u23.2, "every endoprosthesis has a limited lifespan.With state of the art techniques, there is no potential for further mitigation of the risks from a clinical point of view".Therefore, the risk shall remain appropriate.Trilliant surgical is the manufacturer of the device , the device did not cause or contribute to a death or an injury that was life threatening.A malfunction of the device resulting in a failure of the device to perform its essential function which comprises the device's therapeutic effectiveness that could cause or contribute to death or serious injury did not occur.Recurrence of the malfunction is not likely to cause or contribute to a death or serious injury.The device is not considered to be life supporting or life sustaining.The devise was not returned for evaluation, and additional information was not received regarding the reason for the revision surgery.A root cause could not be established, though the root cause is unknown, it is not expected to be attributed to the supplier.If additional information regarding the reported event is submitted at a future date, this investigation will be re-evaluated.
Event or Problem Description
Revision surgery -.Poly swap, unknown reason.

• Brand Name: STAR
• Common Device Name: SLIDING CORE, UHMPWE,7MM
• Manufacturer (Section D): ENCORE MEDICAL L.P.; 9800 metric blvd.; austin TX 78758
• Manufacturer (Section G): ENCORE MEDICAL L.P.; 9800 metric blvd.; austin TX 78758
• Manufacturer Contact: stacey bonnell ; 9800 metric blvd; austin, TX 78758 ; 5128346313
• MDR Report Key: 24646420
• Report Number: 1644408-2026-00615
• Device Sequence Number: 21384290
• Product Code: NTG
• UDI-Device Identifier: 00886385026930
• UDI-Public: 00886385026930
• Combination Product (Y/N): N
• Initial Reporter State: IN
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 03/19/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Catalogue Number: 400-141F
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/14/2023
• Initial Report FDA Received Date: 03/19/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Age: 77 YR
• Patient Sex: Female